Tonight, you're going to meet some people who have crackled the code to making a living in this difficult economy. We've always had handymen and handywomen, the people in the neighborhood willing to fix a sink or babysit a kid. Here's ABC's Rebecca Jarvis. Reporter: Justin prim isn't just a bike messenger. He's part of a new wave of self-employed go-getters, capitalizing on something called the sharing economy. Online market places where you relate out things you own, hike your home, your car, or even random stuff lying around your house. But how about making money by renting out yourself? Cashing in on your own spare time by doing odd jobs. I'm a task rabbit. I'm a task rabbit full-time. Reporter: Lea is the founder of task rabbits. It's an online portal that links thousands of people to clients that need an extra pair of hands. A little extra time. Saving the day, one task at a time. Reporter: Don't half. Some of these people are earning six figures. I could argue the most valuable asset someone has is their time and their skills. Reporter: When did you move into this space this We've been here now about three years. Reporter: Lea quit a cushy job at IBM six years ago to create task rabbit. I started the company in September of 2008 at a time when the stock market was crashing, people were getting laid off left and right and I thought, what did I just do? But it was a really great time to start a business like task rabbit, because we were helping people find new ways to work. I was one of the victims of the recession back in 2009 and got laid off. Reporter: Chris was working at Macy's, and wasn't really sure what to do. I had trouble with the job search until I took the reigns. Reporter: Chris turned to what we knew and what he knew would pay well. Something like this would be maybe $50 to $75 an hour. Reporter: And his task rabbit experiment as a handyman turned into a full-time gig. Initially you can make $50,000 a year. Now I have realized you can make six figures if you want. Reporter: It's attracting more and more Americans. There are more 20,000 task rabbits out there in 20 cities. 10% of them using it as a full-time job. There are critics, though. Task rabbit takes a flat 20% cut of all tasks, no matter how small, and some have accused the company of keeping wages low. There have been some confidences about the fact that maybe this is exploitive, because you have to make yourself the least expensive person to get the job. What we see is the consumers, the people that need the help are reviewing these bids and they're not picking the lowest. They're looking at task rabbit profiles, their ratings, reviews. Reporter: Something we saw first hand trying to select a task rabbit to wash our car while we tracked down Justin, the bike messenger. Jody seems really interested, even though she's $33 an hour, she seems really good. I say let's go for it. Nice to meet you. Reporter: Then exactly when we set the task, Jody arrived. And off we went to try to meet up with task rabbit Justin. There he is. Hey, Justin. How are you? Doing well. How are you? Reporter: How are the tasks going? Busy day all over town. A lot of thriveries. Reporter: His next drop, flowers at a senior home. We have hundreds of different types of jobs posted on the site. Thank you. Reporter: What do you think about the argument you should be able to do these things yourself? How lazy do you have to be to get somebody else to build your ikia turn your for you? It is not about laziness. I am a new mom. It is survival mode daily. Reporter: So you are using your own service? I am using my own service now more than ever. Reporter: Hike working mom Emily, trying to balance it all. A demanding job, two kids, a husband, dog and barbecue this weekend. I need to make two trips for me. And deliver to my apartment. That means being able to manage my life and have my kids. I have run out of hours in the day to get done what I need to get done. Ten years ago, there was probably a kid in your neighborhood that you would have come by and mow the lawn or wash your car. I think for a time, technology siloed us and it created these barriers. Everything went well. I think technology has finally got on the a point where it's reconnecting neighborhoods. Reporter: Rebecca Jarvis for "Nightline" in San Francisco. Coming up on "Nightline,"

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